TFM - an o....l....d study, and from the abstract, riddled with holes.
moondog - the HV should not say things like that without a citation.
The last time I looked at this issue, I came to the conclusion that no one has any evidence to be dogmatic about feeding and PND either way.
It may be true that women who bf have more incidence of PND - but if we define bf as 'ever putting baby to breast', then as most women who bf stop long before the 6 ms excl. bf recommendation, let alone long before any 'natural' age, then all we could say is that 'unphysiologically short terms of bf are associated with an increased incidence of PND.'
OTOH it may be true that as bf for many women in the UK is an unrewarding, socially-excluding and counter-cultural phenomenon, it might be linked an inc risk of PND for those reasons.
This is speculation, I stress - would have to read more recent texts to be more confident.
No idea if the HV is right anyway...